Xiao K, Huang Z, Xie R. Interpretable Feature Based Machine Learning for Automatic Sleep Detection Using Photoplethysmography: A Cross Disciplinary Approach to Health Management. Big.D [Internet]. 2026 Jan. 23 [cited 2026 Mar. 7];2(1):1-9. Available from: https://big-design.org/article/view/v2n1_2025_paper1